Door-bell



(No Model.) 2 Sheets-Sheet 1.

- J. ALLEN & S. G O-ULDEN.

DOOR BELL.

No. 450,347. Patented Apr. 14,1891.

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N0. 450,34'1' Patented Apr. 14, 1891.

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UNITED STATES PATENT OFFICE.

JOSEPHALLEN AND SAMUEL GOULDEN, OF NEWVARK, NElV J ERSEY.

DOOR-BELL.

SPECIFICATION forming part of Letters Patent No. 450,347, dated April 14, 1891.

Application filed August 11, 1890. Serial No. 361,610. (No model.)

To (0% whom it may concern:

Be it known that we, JOSEPH ALLEN and SAMUEL GOULDEN, citizens of the United States,'residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Door-Bells; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification. A

This invention relates more particularly to certain improvements in that class of devices illustrated in our prior patent, No. 428,198, the object of which is to secure a more perfect control of the bell-ringing mechanism than heretofore. In the said prior device the hand-lever for operating the train of mechanism for giving rapidity of movement to the bell-hammers had a reciprocating movement only, the said lever having but a limited movement in one direction under the power exerted by the hand and a return movement to an initial position under the power exerted by a spring. The spring-controlled lever thus constructed and arranged in connection with the train of bell-ringing mechanism, when once pulled by the hand andthe bell given a sufficient ringing for practical purposes, an additional ringing followed of necessity, because of the return movement of the lever to the said initial position.

In the improved device the necessity of a second or double ringing is avoided and the ringing of the bell is brought under the full and perfect control of the person ringing it. Again, the effect of the reciprocating action of the lever was perfectly apparent in the ringing, there being a necessary break at the moment of reversal of the movement of the lever. In the present device this is avoided,

where they occur, Figure 1 represents a side elevation of a door or door-casing and showing the escutcheon and bell-knob on the outside thereof. ing the bell secured to the inside thereof. Fig. 3 is a section taken through line on of Fig. 1. Fig.4 is a section taken through line y of Fig. 3. Fig. 5 is a plan view of the case, due, the gong being removed. Figs. 6, '7, and S are detail views of the hammer-carrier and the hammers.

In, said drawings, A indicates a portion of a door or a door-casing, as the case may be.

B indicates the case which incloses and supports portions of the hammer-operating mechanism, and is firmly secured to said door or door-casing by means of suitable screws or fasteners, as indicated in Fig. 2.

C indicates the bell or gong, which is firmly screwed upon the threaded end of a post a, projecting from an arched support I), integrally connected to the case B, said post, arched support, and case forming one complete casting, thereby avoiding complication in the use of separate parts and securing rigidity, simplicity, and strength.

The hammers and driving mechanism are carried by two plates or disks 0 and d, which are firmly secured by means of screws e to lugs f, projecting inwardly from and being also integral with the case B.

The hammers it (two in number) are pivotally adjusted upon a slotted hammer-carrier g, which is secured to one end of a rotating shaft 1', having its hearings in the aforesaid plates or disks 0 and d and carrying a pinion j, which engages in operative relation with a gear-wheel 70, carried by a shaft Z, which also carries a pinion which engages in operative relation with a gear-wheel 42, carried by the driving-shaft 0, which also has its bearings in the said disks 0 and cl, as seen in Fig. 3. One end of said driving-shaft is squared and projects through the back or inner disk 0 and engages with a rotating key p, which has a corresponding opening in its end to receive said shaft and is operated from the outside of the door, as will be understood. Said key passes through an aperture in the door or door-casing A and through an escutchcon responding parts in each of the several figures Fig. 2 is a similar View showg, properly fastened upon the outside of said door or door-casing, and is prevented from longitudinal movement by a pin or key '1 and shoulders s, as will be understood upon ref erence to said Fig.

The device is operated by rotating the key 19, by means of the knob 25, either to the right or left, or in both directions alternately, which communicates to the hammer-shaft 2' a rapid rotary motion, whereby the hammers, by means of centrifugal force thus produced, are caused to strike the inner surface of the bell or gong in rapid succession, as will be understood. By this construction and arrangement of the parts we are enabled to dispense with springs, levers, wires, &c., and thereby avoid the liability of the bell. getting out of order, as will be obvious.

Having thus described our invention, what we claim as new is 1. The door-bell herein shown and described, consisting of the case 13, adapted to be secured to the inside of a door or door-casing and provided with the post a and arched support 1),. formed integral with said case, the gong having a screw-threaded aperture and screwed upon the threaded end of said post a, the disks 0 and cl, secured to said case, as described, the hammer-shaft 2', carrying a pinionand having its bearings in said disks, the slotted hammer carrier g, secured to said shaft, the hammer h, pivot-ally adjusted to the slotted ends of said carrier, the driving-shaft 0, having one end squared and projecting through the back or inner disk 0, a train of gears and pinions connecting the drivingshaft with the hammer-shaft, as described, and

arotating key adapted to pass through the door or door-casing and to engage with the end of said driving-shaft, said parts being arranged to operate as described, for the purposes set forth.

2. In a door-bell, the combination, with a plurality of rotating hammers, a gong, and gearing for speeding said hammers, of a rotary spindle or shaft connecting with said gearing and adapted to extend through a door or jamb, and a key connecting with said shaft and provided with a knob or finger-piece, whereby a continuous ringing may be produced by rotating said key in either or both directions, as described and for the purposes set forth.

3. In a door belhlthe combination, with the driving shaft thereof and an escutcheon adapted tobe secured to the outside of a door or jamb, of a key adapted toengage with said shaft and to pass through said escutcheon and door or jamb, and having a knob or fingerpieee with shoulders adapted to engage with the outside of said. escutcheon, and a pin or holder engaging the inside thereof and the shank of said key, whereby the latter is prevented from longitudinal movement, as set forth.

In testimony that we claim the foregoing we have hereunto set our hands this 5th day of August, 1890.

JOSEPH ALLEN. SAMUEL GOULDEN.

\Vitnesses:

OLIVER DRAKE, OSCAR A. MICHEL. 

